As per wiki
1) Squads are allowed to send messages via the squad chat channel
2)A squad icon will be shown over the heads of characters that are members of the squad; these cannot be seen by members of another squads
3)Joining a squad does not require permission from squad leader to join.
The maximum size for a squad is currently 50.
I believe 1 and 3 is working but at the moment i cant see members of my squad or some ppl cant join my squad or i cant invite them is this a bug or something ?